_filelength, _filelengthi64

Статья
10/16/2008

Gets the length of a file.

long _filelength( 
   int fd 
);
__int64 _filelengthi64( 
   int fd 
);

Параметры

fd
Target the file descriptor.

Возвращаемое значение

Both _filelength and _filelengthi64 return the file length, in bytes, of the target file associated with fd. If fd is an invalid file descriptor, this function invokes the invalid parameter handler, as described in Parameter Validation. If execution is allowed to continue, both functions return –1L to indicate an error and set errno to EBADF.